吉林大学学报(理学版) ›› 2020, Vol. 58 ›› Issue (1): 47-53.

• 数学 • 上一篇    下一篇

带有耗散梯度函数的抛物方程爆破与有效性分析

凌征球1, 何冰2   

  1. 1. 玉林师范学院 数学与统计学院, 广西 玉林 537000; 2. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2019-05-05 出版日期:2020-01-26 发布日期:2020-01-12
  • 通讯作者: 何冰 E-mail:hebing@jlu.edu.cn

Blowup and Effectiveness Analysis in a Parabolic Equationwith Dissipative Gradient Function

LING Zhengqiu1, HE Bing2   

  1. 1. School of Mathematics and Statistics, Yulin Normal University, Yulin 537000, Guangxi ZhuangAutonomous Region, China; 
    2. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2019-05-05 Online:2020-01-26 Published:2020-01-12
  • Contact: HE Bing E-mail:hebing@jlu.edu.cn

摘要: 通过建立合适的Sobolev型不等式, 解决一类混合边界条件下含有耗散梯度函数的抛物方程解的爆破问题, 当问题解发生爆破时, 使用两种方法得到了其爆破时间的下界估计, 并给出这些方法的有效性分析.

关键词: 爆破, 下界, 耗散梯度, 混合边界条件

Abstract: By establishing an appropriate Sobolev inequality, we solved the blowup problem of solutions of a class of parabolic equation with dissipative gradient functions under mixed boundary conditions. Furthermore, two methods were used to obtain estimates of the lower bound of blowup time for blowup solutions, and the effectiveness of the these methods was analyzed.

Key words:  , blowup,  , lower bound, dissipative gradient, mixed boundary condition

中图分类号: 

  • O175.29